Application of digital image correlation method to study dental composite shrinkage

被引:19
|
作者
Chuang, S. F. [1 ,2 ]
Chen, T. Y. [3 ]
Chang, C. H. [1 ]
机构
[1] Natl Cheng Kung Univ, Inst Biomed Engn, Tainan 70403, Taiwan
[2] Natl Cheng Kung Univ, Inst Oral Med, Tainan 70403, Taiwan
[3] Natl Cheng Kung Univ, Dept Mech Engn, Tainan 70403, Taiwan
关键词
digital image correlation; displacement; polymerisation shrinkage; resin composite;
D O I
10.1111/j.1475-1305.2007.00403.x
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Although resin-based composites are widely used in dental restoration, these materials shrink during polymerisation. Polymerisation shrinkage results in distortion of the restoration and bonded tooth and also generates internal stress at the resin-tooth interface. Digital image correlation (DIC) is used to determine the in-plane displacement field by matching different zones of two characterised pictures. The objective of this study was to examine the applicability of DIC in measuring the deformation of the composite restoration and the surrounding tooth. A preliminary experiment examined the shrinkage of composites in a simulated cavity using the DIC method. The measured shrinkage pattern was consistent with a corresponding finite element model. Subsequently the deformation of composite restorations on human molars was examined using this validated DIC method. The greatest deformation was found on the free occlusal surfaces, and the least on the gingival wall. The increased deformation on the post-cured images indicated that the shrinkage continued even after termination of light activation. DIC method facilitates a full-field measurement of shrinkage profile. These experimental results did not only demonstrate the spatial and temporal relationship of displacement in a dental restoration, but also provide validation of computational models to examine the polymerisation consequence.
引用
收藏
页码:231 / 238
页数:8
相关论文
共 50 条
  • [1] Shrinkage of Dental Composite in Simulated Cavity Measured with Digital Image Correlation
    Li, Jianying
    Thakur, Preetanjali
    Fok, Alex S. L.
    [J]. JOVE-JOURNAL OF VISUALIZED EXPERIMENTS, 2014, (89):
  • [2] Modeling dental composite shrinkage by digital image correlation and finite element methods
    Chen, Terry Yuan-Fang
    Huang, Pin-Sheng
    Chuang, Shu-Fen
    [J]. OPTICS AND LASERS IN ENGINEERING, 2014, 61 : 23 - 30
  • [3] Shrinkage experimental study using digital image correlation method
    Liu, Jing-Hui
    Wang, Duan-Yi
    [J]. Yantu Lixue/Rock and Soil Mechanics, 2009, 30 (06): : 1867 - 1872
  • [4] Shrinkage experimental study using digital image correlation method
    Liu Jing-hui
    Wang Duan-yi
    [J]. ROCK AND SOIL MECHANICS, 2009, 30 (06) : 1867 - 1872
  • [5] Application of digital image correlation to full-field measurement of shrinkage strain of dental composites
    Li, Jian-ying
    Lau, Andrew
    Fok, Alex S. L.
    [J]. JOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE A, 2013, 14 (01): : 1 - 10
  • [6] Application of digital image correlation to full-field measurement of shrinkage strain of dental composites
    Jian-ying Li
    Andrew Lau
    Alex S. L. Fok
    [J]. Journal of Zhejiang University SCIENCE A, 2013, 14 : 1 - 10
  • [7] Application of digital image correlation to full-field measurement of shrinkage strain of dental composites
    Jian-ying LI
    Andrew LAU
    Alex S. L. FOK
    [J]. Journal of Zhejiang University-Science A(Applied Physics & Engineering), 2013, (01) : 1 - 10
  • [8] Application of digital image correlation to full-field measurement of shrinkage strain of dental composites
    Jian-ying LI
    Andrew LAU
    Alex S. L. FOK
    [J]. Journal of Zhejiang University-Science A(Applied Physics & Engineering)., 2013, 14 (01) - 10
  • [9] Polymerization shrinkage and stress analysis during dental restoration observed by digital image correlation method
    Park, Jung-Hoon
    Choi, Nak-Sam
    [J]. JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2021, 35 (12) : 5435 - 5444
  • [10] Polymerization shrinkage and stress analysis during dental restoration observed by digital image correlation method
    Jung-Hoon Park
    Nak-Sam Choi
    [J]. Journal of Mechanical Science and Technology, 2021, 35 : 5435 - 5444